问题描述
如何使用C#将上述信息拆分为以下字符串:
2
1016
7/31/2008 14:22
Geoff Dalgas
6/5/2011 22:21
http://stackoverflow.com
Corvallis,OR
7679
351
81
b437f461b3fd27387c5d8ab47a293d35
34
您可以看到其中一列包含< =(Corvallis,OR)
//更新//
基于
string [] result = Regex.Split(samplestring,,(?=(?:[^ \] * \ [^ \] * \)* [^ \] * $));
使用 Microsoft.VisualBasic.FileIO.TextFieldParser
类。这将处理解析分隔的文件 TextReader
或 Stream
,其中一些字段用引号括起来,有些不是。
例如:
使用Microsoft.VisualBasic.FileIO;
string csv =2,1016,7 / 31/2008 14:22,Geoff Dalgas,2011年6月5日22:21,http://stackoverflow.com,\Corvallis, ,7679,351,81,b437f461b3fd27387c5d8ab47a293d35,34;
TextFieldParser parser = new TextFieldParser(new StringReader(csv));
//你也可以从文件中读取
// TextFieldParser parser = new TextFieldParser(mycsvfile.csv);
parser.HasFieldsEnclosedInQuotes = true;
parser.SetDelimiters(,);
string [] fields;
while(!parser.EndOfData)
{
fields = parser.ReadFields();
foreach(字段中的字符串字段)
{
Console.WriteLine(field);
}
}
parser.Close();
这将导致以下输出:
2
1016
7/31/2008 14:22
Geoff Dalgas
6/5/2011 22:21
http ://stackoverflow.com
Corvallis,OR
7679
351
81
b437f461b3fd27387c5d8ab47a293d35
34
请参见 Microsoft。
您需要添加对 Microsoft.VisualBasic的引用
在添加引用.NET选项卡中。
Given
How to use C# to split the above information into strings as follows:
2
1016
7/31/2008 14:22
Geoff Dalgas
6/5/2011 22:21
http://stackoverflow.com
Corvallis, OR
7679
351
81
b437f461b3fd27387c5d8ab47a293d35
34
As you can see one of the column contains , <= (Corvallis, OR)
// update //Based onC# Regex Split - commas outside quotes
string[] result = Regex.Split(samplestring, ",(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)");
Use the Microsoft.VisualBasic.FileIO.TextFieldParser
class. This will handle parsing a delimited file, TextReader
or Stream
where some fields are enclosed in quotes and some are not.
For example:
using Microsoft.VisualBasic.FileIO;
string csv = "2,1016,7/31/2008 14:22,Geoff Dalgas,6/5/2011 22:21,http://stackoverflow.com,\"Corvallis, OR\",7679,351,81,b437f461b3fd27387c5d8ab47a293d35,34";
TextFieldParser parser = new TextFieldParser(new StringReader(csv));
// You can also read from a file
// TextFieldParser parser = new TextFieldParser("mycsvfile.csv");
parser.HasFieldsEnclosedInQuotes = true;
parser.SetDelimiters(",");
string[] fields;
while (!parser.EndOfData)
{
fields = parser.ReadFields();
foreach (string field in fields)
{
Console.WriteLine(field);
}
}
parser.Close();
This should result in the following output:
2 1016 7/31/2008 14:22 Geoff Dalgas 6/5/2011 22:21 http://stackoverflow.com Corvallis, OR 7679 351 81 b437f461b3fd27387c5d8ab47a293d35 34
See Microsoft.VisualBasic.FileIO.TextFieldParser for more information.
You need to add a reference to Microsoft.VisualBasic
in the Add References .NET tab.
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